58
IM 04L41B01-02E
Recommended Replacement Periods for Worn Parts
To preserve the reliability of the DX and to use the DX in a good condition for an
extended time, it is recommended that periodic replacements be made on parts. The
following table shows the recommended replacement period for expendable parts. The
replacement period shown here applies when the recorder is used under standard
operating conditions. For the actual replacement period, consider the actual conditions
of use. Replacement of parts will be carried out by a YOKOGAWA engineer or an
engineer certified by YOKOGAWA. Contact your nearest YOKOGAWA dealer when
such replacement is necessary.
LCD
Battery
Dust and water
proof rubber
strip
Aluminum
electrolytic
capacitor
5 years
10 years
5 years
5 years
5 years
5 years*
5 years*
Backlight module
Lithium battery
Rubber strip
Key case assembly
Key case assembly
Power supply assembly
AD assembly
B8703KB
B9900BR
B9967AX
B8705BM
B8705BY
−
Depends on the model
Without /KB1 or /KB2
With /KB1 or /KB2
1
1
1
1
1
1
Item
* Replacement period at the upper limit of the normal operating temperature (50
°
C)
The replacement period varies depending on the operating temperature and the specifications of the DX.
If the operating temperature is 30
°
C, it may be possible to use the parts for more than 10 years.
Replacement
period
Name
Part No.
Notes
Quantity
Used
Note
• The LCD replacement period indicates the half life of the brightness when the brightness is set
to the factory default setting. The half life is shortened as the brightness is set higher. The
deterioration of brightness varies depending on the condition of use, and its determination is
subjective. Consider these facts for determining the actual replacement period.
• The color of the LCD may become yellowish as time elapses. The discoloration tends to
progress faster as the brightness is set higher.